Using Plugins
You can select different plugins by going to the Settings menu, and selecting Configure .... Move to the Plugins page by selecting the appropriate list item. Then you can enable enable plugins by selecting the checkbox near their name. requires at least one User-Interface plugin, and requires exactly one Playlist plugin.

Milk Chocolate
Milk Chocolate is a small, simple User Interface. The buttons behave mostly like a CD-player, and the eject button opens the playlist. The sheet with a cross button removes the current playlist item, but does not delete the file from disk, and the arrow button sets the looping mode. A menu is available by clicking anywhere in the window.

Young Hickory
Young hickory is a plugin for the System Tray, the area near the clock, by default.
clicking on the icon will show a small menu, and clicking will toggle the visibility of your user-interface windows. Note that playlists, for example, are not considered user-interfaces.

HTML Playlist Export
This plugin will place your playlist in a nice HTML table. Its preferences page will allow you to set colors, background image, and enable the Hover mode, for changing colors when the cursor is over a link.
After setting options, the Actions menu's Export Playlist... will open a file dialog for you to select where to save the output.

K-Jöfol Skins
The K-Jöfol skin loader is a reimplementation of a program under the same name.
's implementation has a few limitations, unfortunately. For instance the skins must be uncompressed on disk in order to load them.
To install a skin (in the ZIP format) you can use the skin-installer that can be found in the preferences-dialog of .
Because some skins are not packaged correctly and the skin-installer can not guess everything you can still follow these commands if installation of a certain skin failed:

% cd $KDEHOME/share/apps/noatun
% mkdir kjskins (if needed)
% cd kjskins
% mkdir new_skin ; cd new_skin
% unzip /path/to/new_skin.zip

You can also make your own skins with the tutorial at http://www.angelfire.com/mo/nequiem/tutorial.html.

The Split Playlist
The Split Playlist had a simple, classic-style design. Double clicking on an entry will play it (as will selecting it and pressing Enter). You can drag files and s in as well.
As of 3.0, the Split Playlist (SPL) stores its data in an format, but will automatically import the m3u list if the file does not exist. This means that you can write to the m3u file, and delete the file, to automatically generate playlists.
The name Split Playlist is a bit of a misnomer, as the list is not actually split. It results from the original design (back in the early days) actually having it split.

Winamp Skins
If you're actually using the Winamp skin, it should seem familiar to you. Clicking on the timer will toggle it between count-down and count-up mode. Selecting the Scope region under it will enable and disable the scope. You can also double click on the titlebar to toggle Windowshade mode. Right clicking (or clicking on the top-left icon will show the standard toolbar.
You can install new skins by, in $KDEHOME/share/apps/noatun/skins/winamp, creating a directory for them, and then unzipping the skin in there. Winamp skin files with the extension .wsz can be treated as normal zip files. You may have to rename them first, however, to be able to unzip them.

Metatag
Metatag is a plugin that loads information about a file through the use of KFile, the same mechanism that provides with those tooltips when you hover a mouse over files. Aside from loading the information, it supports editing it via the Actions' menu subitem Tag Editing. It supports editing of ID3 tags, as well as OggVorbis tags. It also reads the bitrate from files.

Keyz
Carsten Pfeiffer decided to break with the long lived tradition of naming a plugin in the most innacurate way possible, as proven by both Milk-Chocolate, Young Hickory, and countless others. What's the value in just converting an S to a Z? Sounds like something American-English speakers would do!
However, just because the name is unoriginal doesn't mean this is any less of a plugin. Indeed, this one lets you assign keystrokes to some actions. The real beauty is that these keystrokes work from anywhere, not just from . So this may finally make those Multimedia Keyboards worthwhile.

Infrared Control
If you have a remote control for your computer (such as those found on television cards with Brooktree tuners), and your infrared remote control is supported by LIRC, this should work. Like Keyz, the name is unexciting, but the plugin allows you to assign actions to button presses.
To assign an action to a keypress, load the plugin, go to the Infrared Control page in the configuration window. Select the keypress in the list, and then choose the action to perform with the combo box below. If, in an action like Volume control, you want the action to be performed repeatedly, check the box and select the interval between actions.
If you have a TV card, a convenient trick is to assign the Mute button to Pause, thereby allowing you to mute your TV display application while unpausing , and vice-versa, particularly useful in the case of commercials.